I bought some batteries from Duracell a while ago and only today noticed a “Win world cup prizes” label on the back if I went to a web address and entered a promotional code. So I went to the site and had to enter my name and e-mail address, and make sure I hadn’t ticked the ‘send me spam’ box, and then after half a dozen Flash loading screens I got to enter my promotional code and was told I’d won ‘a prize’. So, more details to enter, a ‘yes I’d like to subscribe’ box (only fair, I was getting a prize), and then a screen telling me I can’t won a top prize, but I could download their screensaver. What a con! I was only expecting a pen or something rubbish anyway, but now I’ve had the ultimate bad brand experience where they’ve tricked me into giving over my details.